Commodity200520062007200820092010
Electrical insulators, of glass$23,503$67,637$197,437$274,428$216,017$1,720,340
Electrical insulators, of ceramics$29,906$2,567$14,720$8,835$36,915$71,072
Electrical insulators of any mat. other than glass & ceramics$157,036$317,938$365,492$665,348$375,344$719,593
Total$210,445$388,142$577,649$948,611$628,276$2,511,005